Pipe-joint.



E. HEYDON.

PIPE JOINT. APPLICATION FILED MAR. l l, I'9I5- 1,246,427. Patented Nov. 13, 1917.

INVENTOR EDWARD HEYDON, or INDIANAPOLIS;.INDIANA.

PIPE-JOINT.

Specification of LettersPatent;

Patented'Novg 1351917} Application filed March-l1, 1915: Serial Ila-13,631.

My invention relates to insulatingjointsforpipes. and particularlyfor underground pipes Of'ftllFlY large s ze.

The object of my invention isto. provide an insulating joint which can readily be placed in pipes or mains which have already been laid, withoutrequiringthe pipe asa whole tobe taken up, and vwhich'will give good insulation and will'notv deteriorate by reason ofthe chemical action of'theearthinwhich it is buried The accompanying drawing illustrates my invention. Thesingle figure of this drawingis .aipartial elevationand partial central longitudinal section through 1 an: insulating joint embodying my invention, together with fragments ofthe adjacentpipe ends.-

The two pipe (ends are veryfrequently originally parts of one pipe alreadylaidin the ground beforethe insulating joint 7. is

placed in iposition, and wheni'itis decided. to place the insulating joint ini theflpipe a. section ofxthis pipe 10 is cut out toprovide a gap of proper length for the insulating? joint.

This 'insulating'joint comprises a porcelain: tube 11 which is slightly shorterithan the gapin, thezpipe .10. On each endi ofithe porcelain. tube 11 is a fitting, composediofthree 'rnetal parts 12, 13,fand 14 fastenedtm gether by bolts 15 and 16. The-part l2 hasa tubular portion; 17 whiclrhas a close slidingfit ion the. end. ofithe .porcelainztubell, and. the part 13 has atubular portion 18 1. which has a closeslidingrfit onithe outside" ofi the itubular portionl'f, the portions 17.

and 18-,being respectively providedat one end with outwardly projectinggflanges E1 9:

and 2.0. The part 14: has a central tubular portion 21,: which :at one end is internally threaded tofit onfthe threaded pipenend 10' and at the other is provided. with a shoulder 22,for. iabutting against. the end vofithe por. celainutube 11, and- -frorn -an.= intermediate part on this tubular. portion 114 .a flange 23-: projects outward and fits against the-flange;

of; the part 13. The fiangesx20r and 23 are firmly; clamped together-by- ;the bolts'116,: of which there are: any desired number and the flange 19 of the part 17 is 'drawntow'ard the flange 20 and 23 by the bolts'lo; which conveniently alternate with the bolts '16 around the flanges. The tubular portion 17 projecting into thetubular portion l does not reachquite to'the flange-23, but leaves a'space over the abutting vjoint between the end ofthe insulating-tube l'lland th shoulder 22' for receiving asuitable packing Q swhich is compressed as the nuts on the bolts 1 5 are tightened tQClllW the tubular por tion 17 more closely toward the' fiange 14. This compression of; the packing QQbinds the parts 'fi-rrnly'onth e endo'f;-the insulating 1 tube;,1l-and forms a tight joint which efi'eotu'allyprevents leak'z' ge. In order to keep,- the packing from beingsforced downbetween the shoulder 22;; and the end- 0f-the insulating" tube 11, the tubular portion 18f 7 is provided with an. inner circumferential recess-25 directly opposite such joint. This recess allows'the packing 24 -tobulgeout wardly,under thecoinpression to whieh it -is subjected, instead of beingr pushed-inward into such joint. I Tn installing my insulating;joint,' -a"piece of the pipe 10 0t proper-size is first-cutout and the ends ofthe reinaininglpart-s of such pipe 7 are threadedawhile in; placein the; 35 grounds When the twoparts2-1=ot-the fittings for the two ends ofthe insulating-Tj oint arescrewed upon these pipe ends 10, until the shouldersQQ-of-such two parts {are at .the'proper di stance apart to receive between them-the insulating tube .11 Then the insulating tube, with thepjarts 12 and l3 eta; fitting loosely, mounted on each- :end is slid-- into position between i such two shoulders 22, corresponding flanges 2O-'and- 23 are clamped together byithe bolts 16,;the pack- Tings-247315 put in -place in'each fitting,-, and then the flanges 19 are fastened :to the corresponding flanges 1 20 and 23 --by thebolts 15; and the part 12 0f each-fitting isedraw n, V

by; the-bolts '15 toward the part 14: to':- corn-- pres the packing '24:. I i I I-claim as m inve'ntionz j v v j 1.- In a pipe joint, the combination of: tube, a Zmem-ber having; a sliding 'fit onT-the and ot such tube, asecond member-having a{-:S1ldi1'lg' :fit "On th first rne-mberg-a;third v, 4 member'separable from the first two hers and provided with means for attaching itto' a ipipe means for'attaohing'thesecond andthirdnniiemberstogether, nieansfor torc v ing the first nember along .Ethe pipe the second member, and a packing within the second member and compressed by such sliding of the first member, said third member abutting against the end of the tube and said second member being provided with an inner circumferential groove over such abutting joint.

2. In a pipe joint, the combination of a tube, a member having a sliding fit on the end of such tube, a second member having a sliding fit on the first member, a third member separable from the first two members and provided with means for attaching it to a pipe independently of the first two members; means for attaching the second and third members together, means for forcing the first member along the pipe inside the second member, and a packing within the second member and abutting against said third member and compressed by such sliding of the first member.

3. In a pipe joint, the combination of a tube, and an attaching fitting on the end of such tube, said attaching fitting comprising a member having a close sliding fit on the tube, a second member having a close sliding fit on the first member, a third memher which abuts against the end of the tube and is provided with means for attaching itto a pipe, each of said three members having outwardly projecting flanges, bolts for attaching together the flanges of the second and third members, bolts for drawing the flange of the first member toward the flanges of the second and third members, and'a packing which is located within the second member and over the joint between the tube in the third member so as to be compressedby thetightening of said last: named bolts, said second member having an inner circum 'erential groove over the joint betweenthe tube and the third member.

I attaching together the flanges of the second 4. In a pipe joint, the combination of a tube, and an attaching fitting on the end of such tube, said attaching fitting comprising a member having a close sliding fit on the tube, a second member having a'close sliding fit on' the first member, 'a thirdumembe'r which abuts against the end of the tube and is provided with means for attaching itto a pipe, each of said three members having outwardly pro ectlng flanges, bolts for an'dthird members, bolts for drawing the flange of the first member toward the flanges of the second and third members, and a packing whichis'located within the second member and over the joint between the tube in the 'third'member so as to be compressed by the tightening of the said last-named bolts.

3 5. In a pipe joint, the combination of a tube, and an attaching fitting on the end of said tube, said fitting comprising a part which is provided with means for attachment to a pipe and abuts against the end of the tube and has afliubular projection surrounding the tube end but spaced therefrom, and a second part which has a tubular portion fitting slidingly on the pipe and into the tubular portion of the first part, a pack ing which is located within the space within the tubular portion of the first part and around the end of the tube, and means for drawing the second part toward the end of the tube to compress such packing.

6. In a pipe joint, the combination of an insulated tube, a member having a sliding fit on the end of such tube, a second member having abliding fit on the first.

member, a third member separable from the first two members and provided with means for attaching it to a pipe, jmeans for at taching the second and third members together, means for forcing the first member along the pipe inside the second member, and a packing within the second member and compressed by such sliding of the first member, said third member abutting against the end of the tube and said second member being provided with an inner circumferential groove over such abutting joint.

7. In a pipe joint, the combination of an insulated tube, a member having asliding fit on the end of such tube, a second member having a sliding fit on the first member, a third member separable from the first two members and provided with means for attaching it to a pipe, means for attaching the second and third members together, means for forcing thefirst member along the pipe inside the second member, and a packing within the second" member and compressed by her.

8. In a pipe joint, the combination of an insulated tube, and an attaching fitting on the'endof such tube, said attaching fitting such sliding of the first memcomprising a member having a close sliding within the second member and over the joint between the tube in the third member s'oas to be compressed by the tightening'of said last-named bolts, said second member having an inner circumferential groove over the joint between member. r r

9. In a pipe joint, the combination of an insulated tube, andan'attaching fitting on the tube and the third Y the end of such tube, said attaching'fittingcomprising a member having a close sliding fit on the tube, a second member having a close sliding it on the first member, a third member which abuts against the end of the tube and is provided with means for attaching it to a pipe, each of said three members having outwardly projecting flanges, bolts for attaching together the flanges of the second and third members, bolts for drawing the flange of the first member toward the flanges of the second and third members, and a packing which is located within the second member and over the joint between the tube in the third member so as to be compressed by the tightening of said last-named bolts.

10. In a pipe joint, the con'ibination of an insulated tube, and an attaching fitting on the end of said tube, said fitting comprising a part which is provided with means for attachment to a pipe and abuts against the end of the tube and has a tubular projection surrounding the tube end but spaced therefrom, and a second part which has a tubular portion fitting slidingly 0n the pipe and into the tubular portion of the first part, a packing which is located within the space within the tubular portion of the first part and around the end of the tube, and means for drawing the second part toward the end of the tube to compress such packing.

In witness whereof, I have hereunto set my hand at Indianapolis, Indiana, this ninth day of March, A. D. one thousand nine hundred and fifteen.

EDWARD HEYDON. Witnesses:

JOSEPHINE Gasman, G. B. SCHLEY.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents,

Washington, I). O. 

